CN102187288A - Coupling a specialty system, such as a metering system, to multiple control systems - Google Patents
Coupling a specialty system, such as a metering system, to multiple control systems Download PDFInfo
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Abstract
A metering system configured to couple to multiple specialty systems, such as a control system. At least some of the illustrative embodiments are processing units comprising a processor, a memory coupled to the processor, and a communication port configured to coupled to a backbone communication network of a control system. The memory stores a program that causes the processor to selectively participate (over the communication port) as a processing unit of a control system of a first manufacturer (the control system implements a first proprietary communication protocol between processing units), and to participate (over the communication port) as a processing unit of a control system of a second manufacturer different than the first manufacturer (the control system of the second manufacturer implements a second proprietary communication protocol between the processing units).
Description
Background technology
The manufacturer of distributed process control system designs its control system to use with various industrial processs.For example, the typical hardware that can create of distributed process control system manufacturer and software can be among the various application such such as operation generating plant and even control food processing equipment.For this reason, the manufacturer of distributed process control system has a mind to its system creation for easily being applicable to multiple different controlled process.
Yet having the general process control system in the process control field is not the particular group market of particularly suitable.For example, the hydrocarbon that carries out for the purpose of handing-over (for example, rock gas, liquefied natural gas (LNG), oil, gasoline) flow measurement be exactly a kind of market of particular group, and to this, the general purpose tool that provides in the distributed process control system is unsuitable.In addition, carry out the functional block that flow measurement is calculated though some distributed process control systems may have, it is not enough accurately that the flow measurement that is provided is calculated for handing-over (promptly chargeing) this purpose.In addition, many legal jurisdictions have the relevant regular auditing requirement of measurement with the flow of hydrocarbon, and are used for the general purpose tool that the flow measurement of Process Control System calculates and do not satisfy such requirement.Distributed process control system be not another example in the particular group market of particularly suitable be turbine (for example gas turbine, steam turbine) control.Turbine control system is the by-pass valve control position for turbine trip speed/load control not only, but also realize various specific functions, for example after non-cycle of activity and under the situation of turbofuel flow control, turbine is carried out heat soaking for the suitable expansion of each assembly.Distributed process control system be not another example again in the particular group market of particularly suitable be hydrocarbon quality monitoring (for example BTU content, hydrocarbon constitute, in the natural gas flow carry liquid), and some legal jurisdictions also have the concrete weights and measures requirement relevant with quality monitoring.
Because with relevant complicacy and the requirement of specialized system such as the hydrocarbon metering that is used to join, turbine control and hydrocarbon quality monitoring, in the prior art, described specialized system is independent physical system.
Description of drawings
For exemplary embodiment is described in detail, referring now to accompanying drawing, wherein:
Fig. 1 shows has in fact independently control system part and metering system total system partly;
Fig. 2 shows the system according at least some embodiment;
Fig. 3 illustrates the metering system of the backbone communications network that is coupled to a plurality of control system;
Fig. 4 shows the computer implemented method according at least some embodiment;
Fig. 5 shows the computer implemented method according at least some embodiment; And
Fig. 6 shows the processing unit according at least some embodiment.
Note and term
Below whole description and the employed particular term of claim refer to specific system component.The manufacturer that those skilled in the art will appreciate that the distributed process opertaing device can refer to an assembly by different titles.This paper is not intended to the title difference and the different assembly of NOT-function is distinguished.
In following discussion and claim, term " comprises " and " comprising " uses in open mode, and should be interpreted as expression " comprise, but be not limited to ... " thus.And term " coupling " is intended to expression and connects indirectly or directly.Therefore, if first device coupled to second equipment, this connection can perhaps be passed through via miscellaneous equipment and the indirect connection that is connected by directly connecting.
" flow computer " is meant the hardware device with processor and executive software, wherein said flow computer directly or indirectly and measurement of fluid flow equipment (for example, ultrasonic flowmeter, the forwarder that is associated with orifice) communicate.Described flow computer can also Fluid Computation flow (for example, under the situation of orifice), and described flow computer is further done the flow number of one or more metering conduits (metering run) and added up.Described flow computer can be a specialized equipment, or in the processing unit of also carrying out other function performed virtual unit, all relevant with the weights and measures audit requirement in this way functions of described other function.
" the backbone communications network of control system " is meant a kind of communication network, by this communication network, each processing unit (for example, distributed processing unit, man-machine interface, historical record unit programmable logic controller (PLC) (PLC)) communicate each other, and " the backbone communications network of control system " should come with network (for example, HART, the Modbus) difference of the I/O device coupled being arrived field apparatus.
" participate in " being meant that described control system can determine the existence by the functional block of carrying out in the backbone communications network coupled processing units, and described control system can generate the visual display of described functional block as the processing unit in control system.
Embodiment
Below discuss and be directed to each embodiment of the present invention.Though one or more among these embodiment may be preferred, the disclosed embodiments should not be interpreted as or otherwise be used to limit the scope of the present disclosure that comprises claim.In addition, it will be appreciated by those skilled in the art that following description has widely to use, and the discussion of any embodiment only means the example of this embodiment, comprise that the scope of the present disclosure of claim is restricted to this embodiment and be not intended to hint.
Before turning to the particular content of each embodiment, what should be noted that the discussion of this instructions is the combination of control system and specialized system.The research and development background of each embodiment is with respect to as the specialized system of hydrocarbon metering system, and the embodiment part mainly is to discuss with reference to this research and development background thus; Yet after having understood principle of operation as described herein, described principle just can extend to other specialized system with being equal to, such as turbine control system, diagnosis and monitoring component and hydrocarbon quality monitoring.
Fig. 1 shows the total system 10 that comprises control system 12 (for example, distributed process control system) and independent metering system 14.Control system 12 comprises exemplary two distributed processing units 16 and 18.Each distributed processing unit 16,18 is coupled to one or more I/O (I/O) equipment 20 and 22 respectively.Each distributed processing unit 16,18 utilizes the parameter control software of I/O equipment execution monitoring physical process, calculates the control output numerical value relevant with described physical process, and drives output numerical value to I/O equipment 20,22.Described distributed processing unit by backbone communications network 24 mutually between and with the indication of miscellaneous equipment swap operation functional block and the data value that is associated with described functional block.For example, man-machine interface 26 can be coupled to backbone communications network 24, and man-machine interface 26 can be so that the user can program distribution formula processing unit 16,18 and/or supervision processing parameter.Equally, historical record unit 28 can be coupled to backbone communications network 24.
Still referring to Fig. 1, though the control system 12 of prior art can have the ability of carrying out flow measurement, the flow measurement function that distributed process control system manufacturer is provided may and not be suitable for handing-over and uses.For example, distributed processing unit 16, the 18 performed flow measurements of dcs are calculated may not have enough degree of accuracy, possibly the most current flow rate calculation equation can't be carried out, and/or possibly the management expectancy that various legal jurisdiction applies can't be satisfied with respect to the metering of handing-over.
For the overall system control that can control physical process and can carry out the metering with the degree of accuracy that is enough to be used in joining is provided, in the prior art, provide separately and metering system 14 independently.Control system 12 employed any data values from metering system 14 all utilize the communication channel 30 that is coupling between these two systems to exchange.In many cases, the manufacturer of control system 12 is different from the manufacturer of metering system 14, and this makes and is difficult to swap data value between distributed process control system 12 and metering system 14.Like this equally for other specialized system such as turbine control system, diagnosis and monitoring component and hydrocarbon quality monitoring.
Still referring to Fig. 1, exemplary metering system 14 comprises one or more flow computers 32 and 34.Each flow computer is coupled to one or more flow meter.Under the illustrated situation of Fig. 1, flow computer 32 is coupled to flow meter 36 and 38, and flow computer 34 then is coupled to flow meter 40 and 42. Flow computer 32,34 can receive instant flow number from flow meter thus, perhaps can receive to be used for the original input value of calculated flow rate numerical value.In addition, flow computer 32,34 can add up (summation) instant flow number to produce the total flow numerical value in the predetermined amount of time.Flow computer 32,34 can utilize backbone communications network 44 mutually between and with miscellaneous equipment swap data value.Flow computer 32,34 and/or arbitrarily the programming and the supervision of their institute's numerical value of calculating or adding up can utilize man-machine interface 46 to carry out, described man-machine interface 46 is coupled to backbone communications network 44 equally.In addition, in the illustrated situation of Fig. 1, metering system 14 can comprise the gateway unit 48 that is coupled to backbone communications network 44.In some cases, gateway unit 48 can executive routine to guarantee to meet the weights and measures audit requirement of any specific legal jurisdiction that metering system 14 operates therein.
As the above mentioned, in many cases, the manufacturer of control system 12 is different from the manufacturer such as the such specialized system of metering system 14.Because each manufacturer moves different agreements on its backbone communications network 24 and 44 separately, so possibly can't carry out direct coupling as the backbone communications network between control system 12 and the exemplary metering system 14.Therefore, Fig. 1 shows following situation, and wherein, gateway unit 48 not only is used to guarantee to meet the weights and measures audit requirement, but also as the mechanism by its swap data value between control system 12 and metering system 14.More specifically, in the prior art, the exchange of values between control system 12 and the exemplary metering system 14 is undertaken by the private communication channel different with the backbone communications network of arbitrary system 30.The Physical layer of communication channel 30 and the communication protocol that is adopted can change to some extent.For example, communication channel 30 can be Modbus remote-terminal unit (Modbus RTU) interface, Modbus-TCP or the communication channel that meets the OPC standard.Communication channel 30 is coupled to a distributed processing unit, such as distributed processing unit 16.Communication channel 30 only is the channel that is used to transmit data value, and can't carry out the function of other control types by communication channel 30.For example, control system 12 can't be found the existence of specific function piece performed in the metering system 14 by communication channel.Because control system 12 can't be found such module,, can't realize change equally at described functional block so control system can't generate the demonstration of the described functional block of indication.In addition, control system 12 can't be created new functional block in metering system 14, to be used for by communication channel 30 execution.
Although communication channel 30 may be specially adapted to carry out exchanges data between the system that separates, for the configuration data exchange, each manufacturer generates the tabulation of the data point that will exchange, and described tabulation originally exchanges between manufacturer.Each manufacturer then to its separately system be configured to send and to receive specified data point.In addition, report is created by the manufacturer of metering system 14, shows and initialization only can conduct interviews in metering system 14/check the historical data function relevant with metering system 14.Equally, report is created with respect to the metering system numerical value that only can visit/check by the manufacturer of control system in control system 12, show and initialization historical data function.From discuss, obviously find out, all carried out repeating work in a large number so that control system 12 and specialized system (for example metering system 14) can the swap data values in each side of communication channel 30, and made each system have relevant demonstration and report.Therefore in addition, employed communication channel 30 is band-limited serial communication channel (for example Modbus) in most of situations, and to stride the data volume that described communication channel can exchange be limited.
Fig. 2 shows the system 200 according at least some embodiment.Particularly, system 200 comprises the control system 202 (for example, distributed process control system) on vertical dotted line right side, and the specialized system in dotted line left side, and in the exemplary case, described specialized system is a metering system 204.In prior art system, the communication channel that metering system and control system utilization only limit to the data value exchange is coupled, and its bandwidth may be starkly lower than the backbone communications network, and different therewith, control system 202 and exemplary metering system 204 are shared backbone communications network 206.This instructions at first goes through each assembly of the total system 200 of Fig. 2, and the each side of exemplary metering system 204 is discussed then, comprise metering system 204 and the backbone communications network of sharing from the control system of a plurality of different control system manufacturer as shown in Figure 2 206, and the ability of sharing multiple different communication protocol thus.
Fig. 2 illustrates physical process 208.Physical process 208 can be to utilize control system to monitor and manage any physical process of this process.For example, physical process 208 can be each subsystem of generating plant, the anyon system of hydrocarbon treatment facility, the factory of productive consumption product or various stove and accessorys, conveyer and the stirring machine of food processing factory.Regardless of the definite attribute of physical process 208, temperature transmitter, pressure transmitter, valve positioner, valve location indicator, electric machine control system and other physical object relevant with physical process 208 are coupled to I/O (I/O) equipment of control system 202.In the illustrated system of Fig. 2, show two groups of I/ O equipment 210 and 212; Yet, in control system 202, can be combined with the I/O equipment of any amount.The equipment (for example, temperature transmitter, pressure transmitter, valve positioner etc.) directly mutual with physical process 208 can communicate with any appropriate protocol and I/O equipment 210,212.For example, field apparatus can utilize the HART agreement on loop, use and the 4-20mA loop same line of 4-20 milliampere (mA), perhaps uses Modbus (for example, Modbus RTU, Modbus/TCP) and I/O equipment 210,212 to communicate.
Still referring to Fig. 2, control system 202 can comprise one or more distributed processing units.In the illustrated situation of Fig. 2, show two distributed processing units 214 and 216; Yet, can use the distributed processing unit of any amount.According to distributed process control theory, each distributed processing unit 214,216 can physically approach its direct-coupled I/O equipment 210,212 respectively and be set up.In addition, distributed processing unit 214,216 can also physically approach the specific part of the physical process 208 that each distributed processing unit 16,18 is responsible for and be set up.
Each distributed processing unit 214,216 carry out controlled physical process 10 with its Control Software of part correlation.Described Control Software can realize the controlling schemes (being embodied as " ladder logic " sometimes) based on boolean, and the closed-loop control that perhaps described Control Software can implementation is such as proportion integration differentiation (PID) Control Circulation.In other embodiment again, described Control Software can realize the control based on neural network of physical process 208.In some industries, distributed processing unit 214,216 can be known as programmable logic controller (PLC) (PLC).For example, distributed processing unit 214,216 can be the DeltaV that can obtain from Emerson process management company in St. Louis city
TMThe MD controller.
In most of situations, employed data value of carrying out on the specific distribution formula processing unit of Control Software and the output numerical value that is generated are associated with locally-attached I/O equipment.Yet exemplary distributed processing unit 214,216 can communicate each other and with miscellaneous equipment by backbone communications network 206.Therefore, can be between distributed processing unit the swap data value carry out its allocating task relevant to help each distributed processing unit with physical process 208.According at least some embodiment, manufacturer based on specific distribution formula Process Control System, the definite agreement that utilization is used for message exchange (promptly, the layer that is higher than the data link layer of osi model), backbone communications network 206 has been realized the network (that is, having defined the Ethernet of the physical and datalink layer of osi model) of ethernet type.In addition, though most distributed processing system(DPS) adopts the communication network 20 based on Ethernet, each manufacturer can utilize the privately owned high-level protocol that is suitable for providing specific hardware and configuration.
Still referring to Fig. 2, also realized storage with physical process 208 historical data associated according to the control system 202 of some embodiment.According at least some embodiment, historical record unit 218 is parts of control system 202, and the relevant historical data value of collections and maintenance and physical process 208 is responsible in historical record unit 218.Particularly, historical record unit 218 can comprise processing unit 220.Wherein the non-volatile memory cells 222 of storing history data value is coupled to processing unit 220.According at least some embodiment, described non-volatile memories is a hard disk drive, perhaps may be the hard-drive arrays with the fault-tolerant way operation, such as Redundant Array of Inexpensive Disc (RAID) system.In other exemplary embodiment, described non-volatile memories can be any technology that can store data in non-volatile mode therein of current available or later research and development, such as optical storage media and equipment.
In certain embodiments, the historical data value is collected by distributed processing unit 214,216 is carried out poll in historical record unit 218.In other embodiments, program distribution formula processing unit 214,216 sends the parameter value of selecting to historical record unit 218.For example, can send to historical record unit 218 to the slow data value of the procedure parameter of change by distributed processing unit 214,216 per minutes or with bigger time interval, the time span (2 seconds or shorter) that the fast-changing parameter of its numerical value then can be significantly shorter sends to historical record unit 218.
The illustrated control system 202 of Fig. 2 also comprises man-machine interface (HMI) 224.Expressed as its title, all the other equipment that man-machine interface 224 can be the user by itself and control system 202 carry out mutual mechanism, and in some cases, are that the equipment with metering system 204 carries out mutual mechanism.For example, man-machine interface 224 can be to be used in the initialization distributed processing unit 214,216 performed Control Circulation and the mechanism that is associated with the input and output of suitable I/O equipment.Equally, man-machine interface 224 can be the mechanism that operating personnel are used for monitoring and controlling physical process 208 (for example, carrying out the set-point regulates, monitors alarm numerical value, changes valve location).In addition, man-machine interface 224 can be that process engineering teacher is used for the trend of monitoring physical process 208 and the mechanism that may change the performed tuner parameters of the Control Software of distributed processing unit 214,216 or control strategy based on these trend.
Man-machine interface 224 can comprise processing unit 226, form and textural can be similar with the processing unit 220 of historical record unit 218.Processing unit 226 can be owing to type of application and quantity and/or different operating system and is different with other processing unit.Processing unit 226 is coupled to such as cathode ray tube (CRT) or the such display device 228 of LCD (LCD) display.At last, man-machine interface 224 can have keyboard 230 and with the pointing apparatus 232 of its coupling so that the user can carry out with the application program carried out on the processing unit 226 alternately.In interchangeable embodiment, realize that the program of human-machine interface function can be included on the historical record unit 218, need not independent man-machine interface and historical record unit thus.In some industries, historical record unit 218, particularly its Functional Capability can be known as supervision and control and data and obtain (SCADA) unit.
Still referring to Fig. 2, adopt the specialized system of the exemplary form of metering system 204 to comprise one or more flow computers 234 and 236.Each flow computer is coupled to one or more flow meter.Under the illustrated situation of Fig. 2, flow computer 234 is coupled to flow meter 238 and 240, and flow computer 236 is coupled to flow meter 242 and 244.Flow meter 238-244 can be such as the such equipment of ultrasonic flowmeter or orifice system, and described orifice system comprises accurate orifice and pressure and temperature forwarder.Flow computer 234,236 can (under the situation of ultrasonic flowmeter) receive instant flow number from flow meter thus, perhaps can receive to be used for the original input value of calculated flow rate numerical value.In addition, flow computer 234,236 can add up (summation) each instant flow number to draw the bulk flow numerical value in any predetermined amount of time.In addition, flow computer 234,236 can be realized various alert consitions (for example, high and low discharge alarm, superpressure alarm), and further (for example, according to total flow) by-pass valve control to make meter run selectively and enable or inactive.Flow computer 234,236 for example can be can be from the Daniel of Emerson process management company acquisition
The S600 flow computer.In addition, the flow meter 238-244 that is in its many forms also can obtain from Emerson process management company.
Flow computer 234,236 can utilize backbone communications network 206 each other and with miscellaneous equipment swap data value.The programming and the supervision of the numerical value that flow computer 234,236 and/or their institute calculate or add up can utilize the weights and measures unit 246 that is coupled to backbone communications network 206 equally to carry out.
Weights and measures unit 246 can comprise processing unit 248, and this processing unit 248 can be similar at the processing unit 220 of the processing unit 226 of form and textural and man-machine interface 224 or historical record unit 218.Processing unit 248 can be owing to type of application and quantity and/or different operating system and is different with other processing unit.Processing unit 248 is coupled to such as CRT or the such display device 250 of LCD display.At last, weights and measures unit 246 can have keyboard 252 and the pointing apparatus 254 with its coupling, so that the user can be mutual with the application program of execution on the processing unit 248.Many functions can be carried out in weights and measures unit 246.For example, in certain embodiments, weights and measures unit 246 is undertaken alternately so that flow computer 234,236 is carried out supervision and control by backbone communications network 206 and flow computer 234,236.In other embodiments, flow computer 234 and 236 can be omitted, and weights and measures unit 246 can directly communicate (all is the ultrasonic flow rate timing such as working as flow meter) by backbone communications network 206 with flow meter 238-244.In the alternative embodiment that has omitted flow computer, weights and measures unit 246 can be configured to realize the function of flow computer, and can be considered to realize one or more virtual flow computers thus.In addition, when as virtual stream amount computing machine and/or calculating of execution weights and measures and function, weights and measures unit 246 is not limited to the data value that metering system 204 1 sides at total system 200 are obtained, and can obtain some data values from the I/O equipment of control system 202 1 sides of total system equally.In addition, weights and measures unit 246 can provide the equipment of the centralization of metering alarm and/or warning, particularly works as in the virtual stream amount computing machine under the situation that flow computer 234,236 appears in the system and also.In addition, weights and measures unit 246 can provide the centralization of continuous data, and can further provide the metering system proprietary feature, calculate, the quality of every component count, flow weighted mean, long-term and short-term metering report, can find out its performance (for example, Daniel that can obtain from Emerson process management company such as the website bulk flow that carries out according to following flow computer stream sum at the deagnostic test of the control of the metrology data of the display mode of control system 202 and metering system
Supervision external member based on the metering link condition).Though only illustrate a weights and measures unit 246 among Fig. 2, can realize that various exemplary functions are carried out in the weights and measures unit 246 of any amount.
Many legal jurisdictions (for example state and country) have the weights and measures audit requirement relevant with the metering of the hydrocarbon that is used to join.According to each embodiment, 246 pairs of flow computers in weights and measures unit 234,236 or its virtual equivalent are carried out supervision and control, and make the hydrocarbon metering aspect of total system 200 meet the weights and measures audit requirement.Especially, the function of measuring (for example calibration is aimed at, calibration is non-aligned, regulate flow to obtain the flow that passes through each flowmeter in the range of linearity) of weights and measures permission defined can be carried out in weights and measures unit 246.In addition, weights and measures unit 246 can be the centralized repository (for example requiring the record all changes according to weights and measures) of the audit trail of weights and measures requirement.
In the prior art system, control system is and the concrete entity that is separated such as the such specialized system of metering system.Different therewith, according to each embodiment and as shown in Figure 2, described metering system 204 is shared backbone communications networks 206 with control system 202.Therefore, even the manufacturer of control system 202 is different from the manufacturer of exemplary metering system 204, programming, control and the supervision of equipment also can be by the user by in the man-machine interfaces 224 of process control 202 1 sides of total system 200 or carry out as the equipment of man-machine interface arbitrarily in the metering system 204.
Yet,, be that the function of the specialized system of example just is not directly coupled to the backbone communications network from the control system of single manufacturer with metering system 204 according to each embodiment.Particularly, as the above mentioned, be used for the control system of factory control with purchase in the control system industry and buy such as hydrocarbon metering system and the so relevant historical reason of specialized system of turbine control system and be that the manufacturer of control system need not and in most of the cases not identical with the manufacturer of specialized system.According to each embodiment, be designed and the backbone communications network that is configured to be coupled to from the various control system of different manufacturers such as metering system 204 such specialized systems.
Fig. 3 illustrates exemplary metering system 204 and is coupled to ability from a plurality of control system of different manufacturers.Under the illustrated situation of Fig. 3, illustrate two such control system 300 and 302; Yet, can be coupled to two or more control system from different manufacturers according to the metering system 204 of each embodiment.Particularly, Fig. 3 shows exemplary metering system 204 and has realized backbone communications network 206.Shown in dotted line 304, backbone communications network 206 can be coupled to the backbone communications network 306 of the control system 300 that first manufacturer produced.First manufacturer can realize proprietary protocol on backbone communications network 306.For example, backbone communications network 306 can be realized the physical and datalink layer of EtherType, but manufacturer can use the proprietary protocol of layer higher than data link layer in the osi model.
Still referring to Fig. 3, exemplary metering system 204 utilizes dotted line 308 to be illustrated as being coupled to selectively second control system 302 equally.Very similar with control system 300, control system 302 has the backbone communications network 310 that the backbone communications network 206 that makes metering system 204 can be coupled with it.The backbone communications network 310 of control system 302 can be realized the physical and datalink layer of EtherType, but manufacturer can use the proprietary protocol of layer higher than data link layer in the osi model.Should be appreciated that referring to Fig. 3 metering system 204 is not coupled to two or more control system simultaneously; But metering system 204 is programmed and controls being coupled to from two or more control system of different manufacturers and realizing different communication protocol, but metering system 204 only is coupled to a control system constantly at any one.
According to each embodiment, although exemplary (first manufacturer) control system 300 can realize different (and being privately owned in some cases) agreement respectively with (being different from second manufacturer of first manufacturer) control system 302 on its backbone communications network 306 and 310, exemplary metering system 204 is designed and programmes to participate in as the processing unit in each exemplary control system 300 and 302.For example, when participating in as processing unit, the programming and the control of the weights and measures audit function that the programming of flow computer 234,236 and weights and measures unit 246 are performed can be found, and can come visual by graphic alphanumeric display, and can be made amendment by the user, all these is finished by the man-machine interface 224 of control system.In addition, the data value that the historical data function that is provided by the historical record unit 218 of control system 202 can be followed the trail of and " historization " is associated with any one data point in the flow computer 234,236 of metering system 204 1 sides of total system 200 or weights and measures unit 246.In general, in the embodiment shown in Figure 2, the processing unit of metering system 204 1 sides (that is the processing unit 248 of flow computer 234,236 and weights and measures unit 246) participates in as the processing unit of control system 300,302.By operating by this way, even without elimination, the repetition of the engineering work relevant with the establishment of report and historical data function and and two systems between the relevant engineering of exchanges data also be able to remarkable minimizing.
According to control system manufacturer, metering system 204 is likely unique as the processing unit of the control system 300,302 that is connected and participate in really that cutting mechanism is specific for each control system.Therefore, the exemplary mechanisms that the processing unit that this instructions turns to metering system 204 to can be used as control system now participates in, mechanism although it is so may all not realize in each case.The discussion of described exemplary mechanisms is with the establishment of functional block and revise to start with.
In certain embodiments, the similarity of specialized system and control system can so that control system is directly found, visual on display, create, revise and the deletion specialized system in the functional block implemented.Yet, in other embodiments, the man-machine interface of the control system 300,302 that is connected possibly can't directly reach weights and measures unit 246 or flow computer 234,236 to be used to the purpose of programming.In these embodiments, the programming of the particular aspects of weights and measures unit 246 and/or flow computer 234,236 can utilize the distributed processing unit agency in the control system 300,302 that is connected.Particularly, the part that can't directly reach metering system 204 in the man-machine interface of control system 300,302 is with the embodiment of the purpose that is used for programming, and described man-machine interface can be programmed by the distributed processing units in the control system 300,302.For example, each distributed processing unit of the control system 300,302 of connection can have or be equipped with one group of functional block, and described functional block can be inserted into controlling schemes performed in the distributed processing unit.For example, the insertion of functional block can utilize IEC 61131-3 functional block standard to carry out.Yet in these embodiments, the functional block that (agency of equipment in as metering system 204) realized in the distributed processing unit of control system 300,302 can not carried out any control function.But functional block and each data point that is associated with it can be selected, but the example that described functional block is not set up any software is carried out control.But, be configured to the distributed processing unit of the control system 300,302 that periodic scanning connects such as weights and measures unit 246 such metering systems 204.When finding functional block that is associated with metering system 204 in the distributed processing unit of the control system 300,302 that is being connected, the shadow functional block is just realized in weights and measures unit 246 in the processing unit of metering system 204, its example of in fact having set up software is carried out the control of wanting.Point out in addition, " making mute " functional block of the control system 300,302 that is connected is used to want specific function to the user of weights and measures unit 246 notice control system 300,302, and in response, the actual functional block that realizes selected type in weights and measures unit 246 pointed and the control on the functional block institute recognition data point of the distributed processing unit of control system 300,302.
In other embodiments, to the scanning of " making mute " functional block with realize and can carry out with the arbitrary portion of metering system 204, comprise flow computer 234,236, weights and measures unit 246 or metering system the control system that connects in order to scan 300,302 processing unit and realize the purpose of shadow function as mentioned and specially appointed processing unit.
In other embodiments, though with metering system 204 is that the specialized system and the control system 202 of example can be shared backbone communications network 206, but the particular aspects of the programming of metering system 204 may not be according to programming with " programming " identical meanings of control system 202 (that is functional block).In addition, in some cases, the data isolation of weights and measures audit requirement between can appointing system is to guarantee the integrality of weights and measures Audit data.In system is not under the situation of fully-integrated (no matter be because incompatible or in order to satisfy the weights and measures audit requirement), can use independent one or more DLL (dynamic link library) for metering system.Yet it is that essence is different that described independent DLL (dynamic link library) need not between two systems.Therefore, utilize described independent DLL (dynamic link library) to can be similar on the form that is programmed in that specialized system carried out and the function with the programming in the control system, such as the functions of use piece, and by input and the data point binding of drag and drop configuration, and meet IEC 61131-3 functional block standard in certain embodiments with functional block.
Can predict, although some of specialized system (if not all) data points can be safeguarded (for example, in order to satisfy the weights and measures audit requirement) by specialized system, data point is the data point that can be used and be followed the trail of by control system equally.Point out that in addition the programming variation of being carried out on the metering system 204 may reflect or (for example, upgrade the programming of " making mute " control module of control system 202 1 sides with reflection metering system 204 1 sides) synchronously in control system 300,302.Except the graphical programming of functions of use piece, most of control system manufacturer has and edits feature in batches.Editing in batches feature makes it possible to create " flat (flat) " file or ascii text file and comprises the further feature how each data point, data point are bundled to functional block and control system.According at least some embodiment, the programming of specialized system one side changes and interpolation realizes in control system one side by using batch to edit feature.Particularly, according at least some embodiment, DLL (dynamic link library) uses the batch editor feature of control system to propagate the change of carrying out in specialized system one side separately.Make change by independent DLL (dynamic link library) in batches editing flat file, change, and follow described flat file and reinstalled to control system one side to realize changing in control system one side with reflection.The user that this instructions turns to viewable pictures that functional block is provided and functional block how to be connected to other functional block and/or data point now shows.
Be different from and above mentionedly utilize flat file to change, to the performed great majority programming of the controlling schemes of control system, to adjust and change be that demonstration by shown on the display device such as the display device 228 (Fig. 2) of man-machine interface 224 is carried out.When man-machine interface 224 during to distributed processing unit 214, the 216 inquiry information relevant with functional block, processing unit 214,216 returns the Set For Current of the indication of functional block, each data point that is coupled to functional block and functional parameter (for example, pid parameter).In case receive described information, man-machine interface 224 is just recognized the functional block type, generate and the corresponding demonstration of described functional block type, and the information of utilizing distributed processing unit 214,216 to be provided is formed demonstration.Yet the functional block that realizes in specialized system is not known to the Be Controlled system, and therefore this instructions turns to the exemplary mechanisms that is used for transmitting and displaying between specialized system (for example, metering system 204) and control system 202 now.
In certain embodiments, when the relevant demonstration of the functional block of the user of control system 202 1 sides request and the realization of metering system 204 1 sides, described metering system provides the demonstration of one of some kinds of forms itself and is not only indication.For example, in certain embodiments, when asking, described demonstration provides to control system 202 through the backbone communications network with HTML(Hypertext Markup Language), and it then utilizes the browser window on the display device 228 to generate viewable pictures.Use HTML between system, to provide the demonstration can works fine for the demonstration of " snapshot " type, but the user wish to see treatment state in real time or under the situation near real-time indication, HTML possibly can't be competent at, even HTML is by frequent updating.
In other embodiments, when the user makes request, utilize the ActiveX module of striding the transmission of backbone communications network that demonstration is provided.ActiveX is the component object module of moving in another program on the receiving end such such as Web browser (COM).Therefore, when request, metering system can send the ActiveX assembly separately or with HTML code.The man-machine interface 224 that receives the ActiveX assembly is carried out this assembly, and when carrying out the ActiveX assembly, provide function, such as the real time data value of display process parameter (promptly, ActiveX assembly facility the data value transmission), (for example perhaps upgrade processing parameter, PID is provided with, wherein the change of the convenient communication of ActiveX to carry out being asked).Similarly, specialized system can provide execution Java code or Java small routine to provide and to show the function that is associated.
In other embodiments, when the user makes request, utilize independent executable program to stride the backbone communications network and provide demonstration to control system from specialized system.That is to say, stride backbone communications network transmission stand-alone program.In case be received, man-machine interface 224 is just carried out this program, and this program then collect relevant information, generate to show and with display driver to display device.
What should be noted that a bit is that the transmission (can directly carry out or such as Java and/or the such explanation type program of ActiveX) of executable code is not used to support to the variety of protocol that I/O equipment communicates, such as Modbus, Modbus RTU, Modbus-TCP or meet the communication channel of OPC standard.
Fig. 4 shows the computer implemented method according at least some embodiment.Especially, described method begins (frame 400) and proceeds to one or more equipment to communicate, and meets and described one or more device-dependent weights and measures audit requirements (frame 404).In certain embodiments, described one or more equipment are actual or virtual flow computer, and in other embodiments, described equipment is that legal jurisdiction is provided with any apparatus of weights and measures audit requirement to it, such as the hydrocarbon system for monitoring quality.According to the control system under the processor of carrying out described method, exemplary method is then advanced along one of at least two possible parallel routes.In first parallel path, described method comprises by the processing unit of communication port as the control system of first manufacturer and participating in that wherein said control system realizes the first privately owned communication protocol (frame 408) between the distributed processing unit.In second parallel path, described method comprises by the processing unit of communication port as the control system of second manufacturer and participating in that wherein said control system realizes the second privately owned communication protocol (frame 412) between the distributed processing unit.Routing depends on the type of the affiliated system of processor that carries out described method.Subsequently, exemplary computer implemented method finishes (frame 416).
Fig. 5 illustrates when the man-machine interface of control system can't be directly programmed to the processing unit of the specialized system that connected the computer implemented method according to scanning and realization aspect, all metering systems in this way of described specialized system, turbine control system, diagnosis and supervision bag or hydrocarbon system for monitoring quality.Particularly, described method first processing unit that begins (frame 500) and proceed to scanning control system is to search the functional block (frame 504) at second processing unit (for example, the processing unit of metering system).If in first processing unit, find functional block (frame 508), just determine whether corresponding functional block is arranged in second processing unit (frame 512) at second processing unit.If there is not function corresponding piece (frame 512 once more) in second processing unit, then (for example at second processing unit, metering system) realize functional block in this functional block being reflected to (frame 520) in the control system, and exemplary method finishes (frame 524).In many cases, the function corresponding piece is (frame 512 once more) in second processing unit Already in, and exemplary method therefore move to determine to be present in second processing unit functional block (for example, metering system) whether with first functional block different (frames 514) in the control system.If between corresponding functional block, there are differences (frame 514 once more), then the functional block in second processing unit be changed make with control system in first functional block be complementary by (frame 516), and exemplary method finishes (frame 524).If there is not functional block (frame 508 once more) in first processing unit of control system, if functional block and the functional block in the control system perhaps in second processing unit are complementary (frame 514 once more), then exemplary method finishes (frame 524).Yet, can predict wherein to scan and be implemented on the continuous basis and take place.
In addition, for from control system, (for example removing at second processing unit, metering system) functional block, described exemplary method also comprises determines that one or more functional blocks are present in second processing unit, for described second processing unit, there is not corresponding functional block in the control system, and removes described functional block from described second processing unit.
Fig. 6 illustrates the processing unit 600 according at least some embodiment.Processing unit 600 can be any processing unit of Fig. 2, such as distributed processing unit 214,216, (being associated) processing unit 226 with man-machine interface 218, (being associated) processing unit 220 with historical record unit 218, (being associated) processing unit 248, flow computer 234,236, perhaps any other processing unit that can in control system 200, realize with weights and measures unit 246.Particularly, processing unit 600 comprises the processor 622 that utilizes bridging device 626 to be coupled to memory devices 624.Though only show a processor 622, can realize with being equal to a plurality of processor systems and wherein " processor " have the system of a plurality of processing cores.Processor 622 can be the processor of arbitrarily at present available or later research and development, such as the processor that can obtain from the Intel company of the AMD of California Sunnyvale or California Santa Clara.
Still referring to Fig. 6, bridging device 626 further bridges to miscellaneous equipment with processor 622 and storer 624, such as graphics adapter 648 and communication port or network adapter 650.If exist, graphics adapter 648 is to be used for the reading displayed storer and to utilize any suitable graphics adapter that drives display device or monitor 652 at the represented graph image of display-memory.In certain embodiments, graphics adapter 648 comprises the memory area that is write pattern primitive by processor 622 inherently, and/or DMA writes between storer 624 and graphics adapter 648.Graphics adapter 648 utilizes suitable bus system to be coupled to bridging device 626, such as peripheral component interconnect (pci) bus or advanced graphics port (AGP) bus.In certain embodiments, graphics adapter 648 is mutually integrated with bridging device 626.Man-machine interface 224 and the weights and measures unit 246 of Fig. 2 all can comprise graphics adapter, and (being associated with historical record unit 218) distributed processing unit 214,216 and flow computer 234,236 can omit graphics adapter.
As discussed above, when exemplary processing unit 600 is associated with man-machine interface 224, processing unit 600 can be the computing machine that the user is used for carrying out alternately with distributed processing unit 214,216 or weights and measures unit 246 (for example, with to the Control Circulation programming relevant with physical process) and communicates with historical record unit 218.In addition, realizing and move can be from any computer-readable recording medium (for example, storer 624, optical device 642, " floppy disk " equipment 638 or the hard disk drive 634) storage and/or the execution of exemplary processing unit 600 with the program of carrying out method discussed above.
According to description provided here, those skilled in the art can be easily will combine with computer system and/or other the computing machine sub-component of establishment according to each embodiment with suitable universal or special computer hardware as describing the software created, be used to carry out the computer system and/or the computing machine sub-component of the method for each embodiment with establishment, and/or create one or more computer-readable recording mediums of the software program that is used to store the method aspect that realizes each embodiment.
The principle that is intended to illustrate each embodiment of the present invention more than is discussed.In case understood above disclosure fully, variations and modifications are conspicuous to those skilled in the art.Claim is intended to be interpreted as comprising all such changes and modifications.
Claims (18)
1. processing unit comprises:
Processor;
Be coupled to the storer of described processor; With
Be coupled to the communication port of described processor, described communication port is configured to be coupled to the backbone communications network of control system;
Wherein said memory stores program makes described processor selectively when described program is carried out by described processor:
Participate in by the processing unit of described communication port as the control system of first manufacturer, described control system realizes the first privately owned communication protocol between the each processing unit; And
Participate in by the processing unit of described communication port as the control system of second manufacturer that is different from described first manufacturer, the described control system of described second manufacturer realizes the second privately owned communication protocol between the each processing unit, and the described second privately owned communication protocol is different from the described first privately owned communication protocol.
2. processing unit as claimed in claim 1, wherein said program further makes described processor meet the weights and measures audit requirement when being carried out by described processor.
3. processing unit as claimed in claim 1, wherein said program further makes described processor and one or more flow computer communicate when being carried out by described processor, and further makes described processor meet the weights and measures audit requirement.
4. processing unit as claimed in claim 1, wherein when described program participates in, described program makes processing unit that described processor scans described control system being used for the establishment of functional block, and creates corresponding functional block and carry out described functional block in described processing unit.
5. processing unit as claimed in claim 1, wherein when described program participated in, described program can directly be programmed described processor by the man-machine interface of described control system.
6. processing unit as claimed in claim 5, wherein when described processor can directly be programmed by described man-machine interface, described program further made described processor accept to meet the programming of International Electrotechnical Commissio (IEC) standard 61131-3.
7. processing unit as claimed in claim 1, wherein said program when being carried out, further make by described processor described processor carry out following one of at least: carry out hydrocarbon metering, control turbine, carry out diagnosis and monitor service and carry out the hydrocarbon quality monitoring.
8. stored program computer-readable medium makes described processor when described program is carried out by processor:
Communicate and carry out action to meet and described one or more device-dependent weights and measures audit requirements with one or more equipment;
Participate in by the processing unit of communication port as the control system of first manufacturer, described control system realizes the first privately owned communication protocol between the each processing unit; And
Participate in by the processing unit of described communication port as the control system of second manufacturer that is different from described first manufacturer, the described control system of described second manufacturer realizes the second privately owned communication protocol between the each processing unit, and the described second privately owned communication protocol is different from the described first privately owned communication protocol.
9. computer-readable medium as claimed in claim 8, wherein when described processor communication, described program further makes described processor communicate by letter with one or more flow computers.
10. computer-readable medium as claimed in claim 9, wherein when described processor was communicated by letter with described one or more flow computers, described program further made described processor communicate by letter with described one or more flow computers by described communication port.
11. computer-readable medium as claimed in claim 8, wherein when described processor communication, described program further makes described processor communicate by letter with one or more ultrasonic flowmeters.
12. computer-readable medium as claimed in claim 8, wherein when described processor participates in, described program makes processing unit that described processor scans described control system being used for the establishment of functional block, and creates the function corresponding piece and carry out described functional block.
13. computer-readable medium as claimed in claim 8, wherein when described program participated in, described program can directly be programmed described processor by the man-machine interface of described control system.
14. computer-readable medium as claimed in claim 13, wherein when described program can directly be programmed described processor by described man-machine interface, described program further made described processor accept to meet the programming of International Electrotechnical Commissio (IEC) standard 61131-3.
15. a stored program computer-readable medium makes described processor when described program is carried out by processor:
First processing unit of scanning control system is to search the functional block at second processing unit;
If there is not corresponding functional block to be present in described second processing unit, then in described second processing unit, realize and the corresponding functional block of functional block that in described first processing unit, finds; And
If exist as the corresponding functional block between described first and second processing units, but this functional block has different parameters in described second processing unit, then changes described functional block with corresponding to the functional block that finds in described first processing unit in described second processing unit.
16. computer-readable medium as claimed in claim 15, wherein said program further makes described processor scan described first processing unit, if and corresponding functional block is removed in described first processing unit, then remove functional block from described second processing unit.
17. computer-readable medium as claimed in claim 15 further comprises:
Wherein when described processor scanned, described program further made described processor scan a plurality of first processors unit;
Wherein when described processing realizes, described program further makes the corresponding functional block of functional block that described processor is realized and found in described a plurality of first processing units in second processing unit.
18. computer-readable medium as claimed in claim 17, wherein when described processor is realized or change, described program realizes described processor or changes functional block in described second processing unit, as following system part one of at least: the system that is configured to carry out the hydrocarbon metering; Be configured to control the system of turbine; Be configured to carry out the system of diagnosis and monitor service; And the system that is configured to carry out the hydrocarbon quality monitoring.
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| CN108279036B (en) * | 2017-12-12 | 2020-04-10 | 北京卫星制造厂 | Integrated form detecting system |
Also Published As
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| TR201103803T1 (en) | 2011-08-22 |
| AU2009308038A1 (en) | 2010-04-29 |
| RU2011113661A (en) | 2012-11-27 |
| MX2011003666A (en) | 2011-05-10 |
| CA2746728A1 (en) | 2010-04-29 |
| BRPI0919724A2 (en) | 2015-12-08 |
| EP2342650B1 (en) | 2018-12-05 |
| WO2010047857A1 (en) | 2010-04-29 |
| US9411759B2 (en) | 2016-08-09 |
| AU2009308038B2 (en) | 2014-10-02 |
| CN103728935B (en) | 2016-08-17 |
| EP2342650A1 (en) | 2011-07-13 |
| CA2746728C (en) | 2018-06-19 |
| EP2342650A4 (en) | 2013-06-05 |
| US20120259435A1 (en) | 2012-10-11 |
| RU2473956C2 (en) | 2013-01-27 |
| CN103728935A (en) | 2014-04-16 |
| US8046519B2 (en) | 2011-10-25 |
| BRPI0919724B1 (en) | 2019-12-10 |
| US20100100654A1 (en) | 2010-04-22 |
| CN102187288B (en) | 2014-06-11 |
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Address after: Texas, USA Patentee after: Daniel measurement and Control Co.,Ltd. Address before: Texas, USA Patentee before: DANIEL MEASUREMENT AND CONTROL, Inc. Address after: Texas, USA Patentee after: Emerson Automation Solutions Measurement Systems & Services Ltd. Address before: Texas, USA Patentee before: Daniel measurement and Control Co.,Ltd. |